380
Year 380 was a leap year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Augustus. The denomination 380 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.Events
By place
- January or February - Emperor Theodosius I is baptized.
- February 27 - Edict of Thessalonica: Theodosius I, with co-emperors Gratian and Valentinian II, declare their wish that all Roman citizens convert to trinitarian Christianity, in accordance with the patriarchs of Rome and Alexandria, implicitly rejecting the Arianism of the patriarch of Constantinople as heretical.
- Battle of Thessalonica: The Goths under Fritigern defeat a Roman army in Macedonia. Theodosius I retreats to Thessalonica and leaves Gratian in control of the Western Roman Empire.
- Rome's enemies are taken into Imperial service; as a consequence, barbarian leaders begin to play an increasingly active role in the Roman Empire.
- November 24 - Theodosius I makes his adventus, or formal entry, into Constantinople.
- Queen Mavia defeats, with her Saracen forces, the Roman army in southern Syria.
Europe
- The Visigothic chieftain Fritigern dies after ravaging the Balkans; his rival Athanaric becomes king of the entire Gothic nation.
India
- The annexation of western provinces by Chandragupta II gives him control over commerce with Europe and Egypt.
Pacific
- Easter Island, in the south Pacific Ocean, has been occupied by Neolithic seafarers under Hotu Matu'a, who about this time begin to fortify the island.
By topic
Arts and sciences
Births
- Aelia Eudoxia, empress and wife of Arcadius
- Alexius, Eastern saint
- Eucherius, bishop of Lyon
- Eutyches, presbyter and archimandrite
- Hephaestion of Thebes, Egyptian astrologer
- Kālidāsa, Classical Sanskrit writer
- Olympiodorus of Thebes, historical writer
- Peter Chrysologus, bishop of Ravenna
- Philip of Side, Christian church historian
- Socrates of Constantinople, church historian
Deaths
- April 10 - James, Azadanus and Abdicius, Roman Catholic priests, martyrs and saints
Date Unknown
- Fritigern, king of the Visigoths
- Samudragupta, ruler of the Gupta Empire
- Wang Fahui, empress of the Jin dynasty
